MERRA-2 M2TMNXLND: Monthly Land Surface Diagnostics, 1980-Present

M2TMNXLND is a monthly mean land surface diagnostics collection from NASA's MERRA-2 global atmospheric reanalysis. The dataset covers the period from 1980 to the present and includes parameters such as baseflow flux, runoff, soil wetness, and soil temperature across six layers. It is produced by NASA's Global Modeling and Assimilation Office using the GEOS model version 5.12.4.

Use Cases

• Modeling hydrological cycles based on baseflow flux and runoff data
• Analyzing soil moisture trends based on surface and root zone soil wetness
• Studying land surface energy budgets based on soil temperature across six layers
• Monitoring terrestrial water storage based on water at surface and root zone layers

Strengths

• Dataset covers a long temporal range from 1980 to the present
• Data is produced by NASA's Global Modeling and Assimilation Office, a recognized authority
• Includes variance data for certain parameters

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Generated by NASA Global Modeling and Assimilation Office using the Goddard Earth Observing System Model (GEOS) version 5.12.4.

Time Range

1980-present

Freshness

Last updated 2026-03-13 00:51:17.102384; freshness should be verified

Geography

Global, with a spatial resolution of 0.625 x 0.5 degree